Railroad locomotive and one passenger car on Northern Pacific Railroad ice bridge over the Missouri River between Mandan and Bismarck. Tracks and ties are laid directly on the ice. Men standing on front of engine, on walkway around passenger car, and on the ice.

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Railroad locomotive and one passenger car on Northern Pacific Railroad ice bridge over the Missouri River between Mandan and Bismarck. Tracks and ties are laid directly on the ice. Men standing on front of engine, on walkway around passenger car, and on the ice.